What I meant was that prospective work permit holders need to know that they ought not to renew their passports between the time their work permit application is submitted and the time they receive entry clearance. This is information that, so far as I can tell, the UK Home Office does not make available to prospective work permit holders. They could, of course, rely on those entities filling out the work permit application to divine this information and pass it along to the prospective work permit holder, but as my experience, and yours with the Australian, shows, this doesn't always happen.
All I was able to find out back in July when I was trying to decide whether to renew my passport is that it needed to be valid for the duration of my work permit. I remember worrying about the fact that my work permit was to be for 5 years, which is also the maximum length of time for which a Canadian passport is valid, meaning the condition listed as a requirement was impossible to satisfy.
The reason I stress the gov't should make this information available is that when it comes to visas and immigration, a great many things are not common sense. For instance, who would think that if a work permit were issued in my name and with passport number X, and I enclosed when applying for entry clearance both that passport and a new one, where everything on the two passports other than the number (name, date of birth, location of birth, etc.) was identical, and the cancellation date of the old passport is the same as the issuance date of the new passport, that entry clearance would likely be denied? I think the average person would just think "well, obviously this is the same guy, so entry clearance won't be a problem".
retrobolted.